公开(公告)号：US11856381B2

公开(公告)日：2023-12-26

申请号：US17701624

申请日：2022-03-22

Applicant: AGC Inc.

Inventor： Jun Akiyama ,  Kento Sakurai

IPC: H04R7/08 ,  H04R1/02 ,  H04R1/28 ,  H04R7/18 ,  H04R7/26

CPC classification number: H04R7/08 ,  H04R1/025 ,  H04R1/288 ,  H04R7/18 ,  H04R7/26 ,  H04R2307/023

Abstract: A vibration device includes: a glass diaphragm; an exciter which is fixed to the glass diaphragm and vibrates the glass diaphragm; an enclosing member which defines an internal space by enclosing a portion, including a fixing position of the exciter, of the glass diaphragm, one end portion of the glass diaphragm being exposed to outside the internal space through an opening of the internal space; and a shielding member for acoustic shielding between the opening and the glass diaphragm, the shielding member dividing the glass diaphragm into an excitation region located inside the internal space and a vibration region located outside the internal space.

公开(公告)号：US10809424B2

公开(公告)日：2020-10-20

申请号：US15938069

申请日：2018-03-28

Applicant: AGC Inc.

Inventor： Yohei Kawai ,  Jun Akiyama

IPC: G02B5/02 ,  B32B17/06 ,  G10K13/00

Abstract: A glass sheet composite includes a first glass sheet; a second glass sheet; and a liquid layer sandwiched between the first glass sheet and the second glass sheet. The glass sheet composite has a loss coefficient greater than or equal to 1×10−2 at 25° C., and an acoustic velocity of longitudinal wave greater than or equal to 5.0×103 m/s in a sheet thickness direction at 25° C. The liquid layer has a viscous coefficient of 1×10−4-1×103 Pa·s at 25° C., and a surface tension of 15-80 mN/m at 25° C. The liquid layer contains particles whose mean particle diameter is 0.3-1 μm.

公开(公告)号：US12293755B2

公开(公告)日：2025-05-06

申请号：US18357420

申请日：2023-07-24

Applicant: AGC Inc.

Inventor： Jun Akiyama

IPC: G10K11/178 ,  H04R1/02 ,  E06B5/20 ,  G10K11/168

Abstract: A sound insulation device includes: a glass sheet composite including a plurality of glass plates being laminated, and partitioning an interior space and an exterior space; a vibration output unit vibrating the glass sheet composite according to an input signal; an exterior sound detection unit detecting a sound from a noise source or a vibration source and outputting a reference signal according to a detection result, the sound being correlated with a sound wave vibration induced in the glass sheet composite; an interior sound detection unit detecting a sound in the interior space and outputting an error signal according to a detection result; and a control unit including an adaptive filter that generates a cancel signal having a phase opposite to a phase of the reference signal to minimize the error signal, and outputting the cancel signal from the adaptive filter to the vibration output unit.

公开(公告)号：US11632628B2

公开(公告)日：2023-04-18

申请号：US16583719

申请日：2019-09-26

Applicant: AGC Inc.

Inventor： Jun Akiyama ,  Masayuki Hayashi ,  Hikaru Ishida

IPC: H04R7/20 ,  H04R7/04 ,  H04R7/06

Abstract: The purpose of the present invention is to provide a glass sheet composite having satisfactory acoustic performance. The present invention relates to a glass sheet composite including a diaphragm that is vibrated by a vibrator, and a support member that is attached along an edge portion of the diaphragm to support the diaphragm, in which the diaphragm includes at least one glass sheet, and is supported on the support member through a fixing part that fixes the edge portion of the diaphragm to the support member, and a vibration-permitting part that permits vibration of the diaphragm.

公开(公告)号：US11122370B2

公开(公告)日：2021-09-14

申请号：US16549040

申请日：2019-08-23

Applicant: AGC Inc.

Inventor： Jun Akiyama ,  Shinya Tahara ,  Daisuke Uchida ,  Kento Sakurai

IPC: H04R7/08 ,  B32B7/05 ,  B32B17/10 ,  H04R31/00

Abstract: A glass sheet composite includes at least two sheets and a liquid layer held between the two sheets, and at least one of the two sheets being a glass sheet. In the glass sheet composite, the two sheets have been disposed so that an edge surface of one of the two sheets and an edge surface of the other sheet are not flush with each other to constitute a step portion having a stair-like shape in a cross-sectional view, and the glass sheet composite further comprising a seal material provided to the step portion to seal up at least the liquid layer.

公开(公告)号：US12023894B2

公开(公告)日：2024-07-02

申请号：US17815334

申请日：2022-07-27

Applicant: AGC Inc.

Inventor： Jun Akiyama

IPC: B32B17/06 ,  B32B7/12 ,  B32B11/04 ,  B32B27/28 ,  B32B27/30 ,  C03C21/00 ,  C03C27/06 ,  H04R7/04 ,  H04R7/06 ,  B32B17/10 ,  C03C3/087

CPC classification number: B32B17/06 ,  B32B7/12 ,  B32B11/04 ,  B32B27/281 ,  B32B27/30 ,  C03C21/00 ,  C03C27/06 ,  H04R7/04 ,  H04R7/06 ,  B32B17/10 ,  B32B17/10009 ,  B32B17/10082 ,  B32B17/10137 ,  B32B17/10321 ,  B32B17/1044 ,  B32B2255/20 ,  B32B2255/24 ,  B32B2255/26 ,  B32B2307/10 ,  B32B2307/402 ,  B32B2307/412 ,  B32B2307/422 ,  B32B2307/72 ,  B32B2429/00 ,  B32B2607/00 ,  C03C3/087 ,  H04R2307/023

Abstract: A glass sheet composite having two or more glass sheets and a liquid layer between at least a pair of glass sheets out of the glass sheets, wherein a thickness of the liquid layer is 1/10 or less of a total thickness of the pair of glass sheets when a total thickness of the pair of glass sheets is 1 mm or less, and 100 μm or less when the total thickness of the pair of glass sheets is more than 1 mm.

公开(公告)号：US20230368769A1

公开(公告)日：2023-11-16

申请号：US18357420

申请日：2023-07-24

Applicant: AGC Inc.

Inventor： Jun Akiyama

IPC: G10K11/178 ,  H04R1/02

CPC classification number: G10K11/17861 ,  G10K11/17854 ,  G10K11/17879 ,  H04R1/025 ,  H04R2499/13

Abstract: A sound insulation device includes: a glass sheet composite including a plurality of glass plates being laminated, and partitioning an interior space and an exterior space; a vibration output unit vibrating the glass sheet composite according to an input signal; an exterior sound detection unit detecting a sound from a noise source or a vibration source and outputting a reference signal according to a detection result, the sound being correlated with a sound wave vibration induced in the glass sheet composite; an interior sound detection unit detecting a sound in the interior space and outputting an error signal according to a detection result; and a control unit including an adaptive filter that generates a cancel signal having a phase opposite to a phase of the reference signal to minimize the error signal, and outputting the cancel signal from the adaptive filter to the vibration output unit.

公开(公告)号：US11290807B2

公开(公告)日：2022-03-29

申请号：US17010911

申请日：2020-09-03

Applicant: AGC Inc.

Inventor： Jun Akiyama ,  Kento Sakurai

IPC: H04R1/28

Abstract: The speaker device (100) includes a diaphragm (11), an exciter (13) which vibrates in response to an input electrical signal, and a vibration-transmitter (15) which is connected to both the diaphragm (11) and the exciter (13) and transmits the vibration of the exciter (13) to the diaphragm (11), in which the diaphragm (11) has a loss coefficient at 25° C. of 1×10−2 or higher and the vibration-transmitter (15) has a specific elastic modulus of 20 mm2/s2 or higher.

公开(公告)号：US20240300452A1

公开(公告)日：2024-09-12

申请号：US18663711

申请日：2024-05-14

Applicant: AGC Inc.

Inventor： Ken Fujita ,  Jun Akiyama

IPC: B60S1/58 ,  B08B7/02

CPC classification number: B60S1/58 ,  B08B7/02

Abstract: A vibrator-attached vehicular window glass includes: a vehicular window glass including a first glass plate including a first main surface with a water repellent coating; and a first vibrator configured to apply a vibration to the first glass plate, in which the first vibrator is configured to vibrate at an excitation frequency of 10 Hz to 100,000 Hz.

公开(公告)号：US11849296B2

公开(公告)日：2023-12-19

申请号：US17304669

申请日：2021-06-24

Applicant: AGC Inc.

Inventor： Jun Akiyama ,  Kento Sakurai

IPC: H04R7/04 ,  B06B1/04 ,  B06B1/02

CPC classification number: H04R7/045 ,  B06B1/0207 ,  B06B1/045 ,  H04R2440/05

Abstract: A vibration device includes a plate-like glass vibrator and a plurality of exciters that are attached to the glass vibrator and configured to generate vibration according to an input electrical signal. An aspect ratio La/Lb of a length La of a longer side to a length Lb of a shorter side of a rectangle in which the glass vibrator is inscribed is 1.2 to 50. Provided that the number of the exciters is n and a minimum value of distance between the exciters is Smin, a relational value α (α=Smin−1)/La) is 0.2 to 0.8. In the case where the number n of exciters is 3 or larger, a value β(β=Sσ/Save) obtained by dividing a standard deviation Sσ of distances by an average Save of the distances between the exciters is 0 to 0.5.